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Tag Archives: cement
Lifespan of infrastructure, transportation, and buildings
Preface. What follows is from the International Energy Agency 2020 report “Energy technology perspectives” on how to transition to net zero emissions by 2050. This might require the replacement of just about everything, since power plants, steel blast furnaces, cement … Continue reading
Posted in Infrastructure
Tagged buildings, cement, dams, infrastructure, lifespan, steel, transportation
5 Comments
Science magazine on Peak Sand 2017 and 2018
[ Sand is essential to make concrete, glass, silicon for computer chips, and many other products (longer list in Peak Sand), so no wonder top journal “Science” has had two articles on this topic. Sand mining also ruins ecosystems, lessens … Continue reading
Wind turbines hit limits to growth before 50% wind power penetration
Material requirements of 50% wind power in the USA hit limits to growth Also see: Davidsson, S., et al. 2014. Growth curves and sustained commissioning modelling of renewable energy Investigating resource constraints for wind energy. Energy Policy. Fizaine, F., et … Continue reading
Posted in Electrification, Limits To Growth, Renewable Integration, Wind
Tagged cement, concrete, copper, dysprosium, expoxy, fiberglass, iron, limits to growth, neodymium, steel, turbines, wind
2 Comments